How Vitamin B12 Shots Work The administration of vitamin B12 shots involves injecting the vitamin into the muscle, where it is then absorbed into the bloodstream
This side effect is a type of taste distortion called dysgeusia, sometimes referred to as "metal mouth." The symptom is extremely unpleasant and can have a severe impact on your mood, appetite, nutrition, and quality of life
People who follow vegetarian or vegan diets may be at higher risk of inadequate intake and may consider fortified foods or supplements after consulting a healthcare provider
Since B12 is found primarily in animal products, including meat, fish, dairy, and eggs, a substantial reduction in food intake can reduce B12 consumption below optimal levels, particularly for patients who were already borderline deficient before starting treatment or whose diets lean toward plant-based foods